Abstract:

High precision and consistency are demanded for transfer needles of computerized flat knitting machines in order to adapt to the rapid development trend of the machines and to meet the requirement of longer service life of needles. Therefore, this paper introduced a new processing technique, which took machining center as the processing platform, utilized a special automatic fixture with PLC, and consisted of cooling and lubrication with oil-mist, optimization of tool types, gripping style and processing parameters, thus realizing high accuracy and automatic processing of needle grooves. Results of batch processing showed that the machining precision could reach mm, better than traditional precision of mm, and the dimensional consistency met operating requirements. Moreover, surface smoothness was upgraded when compared with that by traditional technique.